{"id":160838,"date":"2023-03-23T10:22:18","date_gmt":"2023-03-23T15:22:18","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/03\/heres-a-peek-into-the-mathematics-of-black-holes"},"modified":"2023-03-23T10:22:18","modified_gmt":"2023-03-23T15:22:18","slug":"heres-a-peek-into-the-mathematics-of-black-holes","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/03\/heres-a-peek-into-the-mathematics-of-black-holes","title":{"rendered":"Here\u2019s a peek into the mathematics of black holes"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/heres-a-peek-into-the-mathematics-of-black-holes2.jpg\"><\/a><\/p>\n<p>Just a couple of years earlier, in 1963, New Zealand mathematician <a href=\"https:\/\/www.sciencenews.org\/wp-content\/uploads\/1975\/04\/00368423.ap071689.07a00220.pdf\">Roy Kerr found a solution<\/a> to Einstein\u2019s equation for a rotating black hole. This was a \u201cgame changer for black holes,\u201d Giorgi noted in a public lecture given at the virtual 2022 International Congress of Mathematicians. Rotating black holes were much more realistic astrophysical objects than the non-spinning black holes that Karl Schwarzschild had solved the equations for.<\/p>\n<p>\u201cPhysicists really had believed for decades that the black hole region was an artifact of symmetry that was appearing in the mathematical construction of this object but not in the real world,\u201d Giorgi said in the talk. Kerr\u2019s solution helped establish the existence of black holes.<\/p>\n<p>In a nearly 1,000-page paper, Giorgi and colleagues used a type of \u201cproof by contradiction\u201d to show that Kerr black holes that rotate slowly (meaning they have a small angular momentum relative to their mass) are mathematically stable. The technique entails assuming the opposite of the statement to be proved, then discovering an inconsistency. That shows that the assumption is false. The work is currently undergoing peer review. \u201cIt\u2019s a long paper, so it\u2019s going to take some time,\u201d Giorgi says.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Just a couple of years earlier, in 1963, New Zealand mathematician Roy Kerr found a solution to Einstein\u2019s equation for a rotating black hole. This was a \u201cgame changer for black holes,\u201d Giorgi noted in a public lecture given at the virtual 2022 International Congress of Mathematicians. Rotating black holes were much more realistic astrophysical [\u2026]<\/p>\n","protected":false},"author":511,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,41,2229,219],"tags":[],"class_list":["post-160838","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-information-science","category-mathematics","category-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/160838","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/511"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=160838"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/160838\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=160838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=160838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=160838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}